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Area Code 720Area Code 720 is in Colorado and covers 6697.11 square miles. Area Code 720 contains 74 non-unique postal area zip codes. |
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| Area Code 720 Zipcodes | |
| 80216 Denver, CO |  |
| 80224 Denver, CO | |
| 80005 Arvada, CO | |
| 80015 Aurora, CO | |
| 80002 Arvada, CO | |
| 80011 Aurora, CO | |
| 80012 Aurora, CO | |
| 80018 Aurora, CO | |
| 80020 Broomfield, CO | |
| 80027 Louisville, CO | |
| 80030 Westminster, CO | |
| 80031 Westminster, CO | |
| 80045 Aurora, CO | |
| 80103 Byers, CO | |
| 80104 Castle Rock, CO | |
| 80108 Castle Rock, CO | |
| 80111 Englewood, CO | |
| 80112 Englewood, CO | |
| 80116 Franktown, CO | |
| 80122 Littleton, CO | |
| 80125 Littleton, CO | |
| 80128 Littleton, CO | |
| 80130 Littleton, CO | |
| 80134 Parker, CO | |
| 80137 Watkins, CO | |
| 80205 Denver, CO | |
| 80207 Denver, CO | |
| 80210 Denver, CO | |
| 80215 Denver, CO | |
| 80218 Denver, CO | |
| 80221 Denver, CO | |
| 80228 Denver, CO | |
| 80230 Denver, CO | |
| 80232 Denver, CO | |
| 80233 Denver, CO | |
| 80239 Denver, CO | |
| 80247 Denver, CO | |
Adjacent Area Codes:
| Area Code 303 | Area Code 719 | Area Code 970 |
| 80301 Boulder, CO |
| 80303 Boulder, CO |
| 80305 Boulder, CO |
| 80421 Bailey, CO |
| 80422 Black Hawk, CO |
| 80433 Conifer, CO |
| 80481 Ward, CO |
| 80503 Longmont, CO |
| 80510 Allenspark, CO |
| 80516 Erie, CO |
| 80601 Brighton, CO |
| 80602 Brighton, CO |
| 80643 Keenesburg, CO |
| 80246 Denver, CO |
| 80202 Denver, CO |
| 80129 Littleton, CO |
| 80540 Lyons, CO |
| 80120 Littleton, CO |
| 80229 Denver, CO |
| 80127 Littleton, CO |
| 80621 Fort Lupton, CO |
| 80016 Aurora, CO |
| 80026 Lafayette, CO |
| 80640 Henderson, CO |
| 80124 Lone Tree, CO |
| 80238 Denver, CO |
| 80204 Denver, CO |
| 80208 Denver, CO |
| 80219 Denver, CO |
| 80117 Kiowa, CO |
| 80465 Morrison, CO |
| 80105 Deer Trail, CO |
| 80023 Broomfield, CO |
| 80033 Wheat Ridge, CO |
| 80010 Aurora, CO |
| 80013 Aurora, CO |
| 80014 Aurora, CO |
data sources: